首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   5038篇
  免费   170篇
  国内免费   25篇
财政金融   677篇
工业经济   294篇
计划管理   900篇
经济学   959篇
综合类   499篇
运输经济   65篇
旅游经济   92篇
贸易经济   730篇
农业经济   250篇
经济概况   759篇
邮电经济   8篇
  2024年   13篇
  2023年   50篇
  2022年   84篇
  2021年   124篇
  2020年   141篇
  2019年   128篇
  2018年   100篇
  2017年   153篇
  2016年   116篇
  2015年   139篇
  2014年   230篇
  2013年   383篇
  2012年   361篇
  2011年   475篇
  2010年   439篇
  2009年   293篇
  2008年   358篇
  2007年   358篇
  2006年   373篇
  2005年   300篇
  2004年   106篇
  2003年   93篇
  2002年   87篇
  2001年   85篇
  2000年   66篇
  1999年   36篇
  1998年   23篇
  1997年   12篇
  1996年   15篇
  1995年   9篇
  1994年   13篇
  1993年   17篇
  1992年   6篇
  1991年   1篇
  1990年   4篇
  1989年   7篇
  1988年   5篇
  1987年   4篇
  1986年   3篇
  1985年   4篇
  1984年   6篇
  1983年   3篇
  1982年   3篇
  1981年   1篇
  1979年   1篇
  1978年   1篇
  1977年   1篇
  1976年   1篇
  1972年   1篇
  1968年   1篇
排序方式: 共有5233条查询结果,搜索用时 203 毫秒
1.
2.
We price an American floating strike lookback option under the Black–Scholes model with a hypothetic static hedging portfolio (HSHP) composed of nontradable European options. Our approach is more efficient than the tree methods because recalculating the option prices is much quicker. Applying put–call duality to an HSHP yields a tradable semistatic hedging portfolio (SSHP). Numerical results indicate that an SSHP has better hedging performance than a delta-hedged portfolio. Finally, we investigate the model risk for SSHP under a stochastic volatility assumption and find that the model risk is related to the correlation between asset price and volatility.  相似文献   
3.
4.
We investigate whether firms restructure board composition to align with changes in their contracting environment. Board size and independence increase with firm complexity, consistent with theoretical predictions. However, the hypothesized negative relation between board independence and information costs is evident only for firms completing acquisitions. Furthermore, board independence increases to offset increases in CEO power in a sample of firms making acquisitions, but decreases when CEO power increases in a large cross‐section of firms. We conclude that after the Sarbanes–Oxley Act of 2002, firms face constraints adjusting to target board structure, but these constraints can be mitigated by a shock to the contracting environment via acquisition.  相似文献   
5.
The Journal of Real Estate Finance and Economics - In the existing housing literature, there has been no academic consensus on how to combine the spatial dependence and the temporal dependence...  相似文献   
6.
This study examines the association between auditors' litigation risk and audit firm attributes. Using professional liability insurance premiums as a proxy for auditors' litigation risk, we present evidence that the risk is lower in audit firms having: (1) separate non-audit and audit divisions; (2) a higher proportion of partners; and (3) a higher annual growth in number of CPAs employed. Additionally, we find that the risk is higher in audit firms having: (1) operating losses; and (2) high revenue growth. Our results are consistent with the idea that audit firms' financial condition and organizational structure affect their independence/ expertise, and, in turn, their litigation risk. Our results are broadly supportive of the PCAOB's (2015) and US Department of Treasury's (2008) views that investors, audit committees, management, and other regulators could benefit from having access to financial and organizational information about audit firms.  相似文献   
7.
Most studies on the predictability of moving average (MA) technical analysis use the discrete (buy/sell) trading recommendations. However, it is possibly incomplete or unreliable to explore the predictability of MA by only employing its generated trading signals. To further explore the forecastability of MA, we study its measurable impact on the stock market returns by using a conventional predictive regression framework. Our empirical study on the US stock market with respect to more detailed price information finds, (i) that the proposed predictor, MADP (MA based on daily prices) shows significant predictability in‐ and out‐of‐sample, and significantly outperforms the historical average (HA) benchmark as well as the MA based on monthly prices, (ii) that the predictability of MADP centers on the short‐term lags (within the most recent 10 days) and disappears when lags are beyond 20 days, and (iii) that the economic evaluation of the portfolios based on trading strategies confirms the superior performance of MADP with short‐term lags against the benchmark even though considering transaction costs.  相似文献   
8.
Theory suggests that a close match between revenue and expenditure assignments at sub-national levels benefits allocative efficiency, and hence economic growth. That is, a convergence of revenue and expenditure assignments at sub-national levels of government should, according to the theory, be positively associated with a higher growth rate. In the case of China, this paper shows, divergence, rather than convergence, in revenue and expenditures at the sub-national level of government is associated with higher rates of growth. A panel dataset for 30 provinces in China is used to examine the relationship between fiscal decentralization and economic growth over two phases of fiscal decentralization in China: (1) 1979–1993 under the fiscal contract system, and (2) 1994–1999 under the tax assignment system. The seeming contradiction between the theory and evidence in the China case is reconciled by taking into account the institutional arrangements that prevailed during the two phases of fiscal decentralization, in particular the inconsistency between the assumptions of the theory of fiscal decentralization and the institutional reality of China.  相似文献   
9.
金巧兰 《江南论坛》2005,(12):17-19
一个国家或地区的经济开放程度涉及很多方面,如贸易国际化、资本国际化、劳动力跨国流动、技术引进和输出等。基于操作上简便易行、指标上具有可比性和连续性、资料易于搜集和量化等原则,本文拟选择出口额、实际利用外商直接投资额与GDP建立对外开放度这一指标。通常情况下,有些学者还会考虑国际投资开放度这个指标,但是.在计划计算苏南、苏中及苏北的国际投资开放度这一指标时发现:一方面由于统计资料的限制.另一方面由于苏南、苏中及苏北的对外投资数额很小,  相似文献   
10.
第四方物流的经营与发展   总被引:2,自引:0,他引:2  
郑晋荣 《物流科技》2004,27(2):24-26
我国加入WTO后,国外物流企业进入中国物流市场,将给我国物流业带来发展机遇,也带来竞争压力,因此.我国物流企业必须运用现代物流理念,加快发展,建设高标准、高质量的物流体系。本文就是希望通过时第四方物流这一新兴物流理念的研究探讨,找出能推进我国物流业的发展思路。  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号